20153313

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{83}}^1$

素因数の和:155

約数の個数: 48

約数和(自身を含む): 33445440

約数和(自身を除く): 13292127

約数列:

[1, 3, 9, 17, 23, 27, 51, 69, 83, 153, 207, 249, 391, 459, 529, 621, 747, 1173, 1411, 1587, 1909, 2241, 3519, 4233, 4761, 5727, 8993, 10557, 12699, 14283, 17181, 26979, 32453, 38097, 43907, 51543, 80937, 97359, 131721, 242811, 292077, 395163, 746419, 876231, 1185489, 2239257, 6717771, 20153313]

約数ペア:

[(1, 20153313), (3, 6717771), (9, 2239257), (17, 1185489), (23, 876231), (27, 746419), (51, 395163), (69, 292077), (83, 242811), (153, 131721), (207, 97359), (249, 80937), (391, 51543), (459, 43907), (529, 38097), (621, 32453), (747, 26979), (1173, 17181), (1411, 14283), (1587, 12699), (1909, 10557), (2241, 8993), (3519, 5727), (4233, 4761)]